#top{
	width: 700px;
	height: 153px;
	background-color: antiquewhite;
	margin-bottom: 2px;
	float: left;
}
#横幅{
width: 700px;
height: 120px;
background: url(../img/banner.jpg);
}
#nav li{
	float: left;
	width: 100px;
	line-height: 33px;
	background: url(../img/button1.jpg);
	text-align: center;
	font-size: 7pX;
}
#nav li:hover{
	background: url(../img/button1_bg.jpg);
	position: relative;
	right: 2px;
	bottom: 1px;
	
}
#nav a{
	text-decoration: none;
	color: black;
}